* Client-Side Metrics Include
* Wiki: https://tiny.amazon.com/cpso0wg6
* Needs to be included at the top of pages because it tracks latency--
* ue_t0 needs to be as close to body load as possible.
* - ue.tag maps to URLType dimension of OnlineQueryLog in PMET. Because we cannot add
* custome data to other dimensions in PMET through CSM, we are replicating it thrice to
* cover each store, page type, and the intersections of the two.
* - Whitelists are listed in the usage guide:
Wolverine's only option to fund the school is to bet everything at an intergalactic casino. Meanwhile, Kitty Pryde's pregnant -- but has no idea how. And a Brood-hunting monster has come from space to take out his target at the Jean Grey School. Plus: the new Hellfire Club hires Sabretooth!